Sand pump and bail.



No. 880,462. PATENTED FEB. 25, 1908.

' V. H. PALM. SAND PUMP AND BAIL.

APPLICATION FILED APR.19.1907.

, pump.

unirnn STATES VPATENT onirica. y

VICTOR PALM, OF BUTLER, PENNSYLVANIA, ASSIGNOR TO T. W. PHILLIPSMANUFAC- TURING COMPANY, OF BUTLER, PENNSYLVANIA, A' CORPORATION -OFPENN- SYLVANIA.

SAND PUMP AND :BAIL

Specification of Letters Patent.

Patented Feb. 25, 1.9.08.

Application ledeApril 19. 1907. Serial No. 369.066.

To all whom it may concern:

Be it known that I, VICTOR H. PALM, a citizen of the United States ofAmerica, residing at Butler, in the county of Butler and State ofPennsylvania, have invented certain new and useful Improvements in SandPumps and Bails, of which the following is a specification, referencebeing had therein to the accompanying drawing.

This invention relates to sand pumps'and hails, and the invention hasfor its object the provision of positive and reliable means fordetachably holding a head or bail in a sand pump.

My invention aims to provide a novel attachment for the present type ofsandpump commonly used in oil well districts, and in this connection, Ihave aimed to dispense with the time and labor heretofore incurred whenemptying or removing sand vfrom a To this end, I have devised adetachable head for a sand pump and a plurality of resilient arms fornormally holding the head in engagement with the pump body, the headbeing constructed whereby it can be rotated and locked in engagementwith the resilient arms.

)ly invention is also applicable to the ordinary bail used in connectionwith an oil or Artesian well, the invention being designed for retaininga bail in the body of a sand pump, whereby the sand pump'can be eitherused for pumping sand or in connection with a bail.

The detail construction entering into my invention will be hereinaftermore fully described and then specifically pointed out in the appendedclaims, and referring to the drawing forming. part of thisspecification,-

like numeralsA of reference designate corresponding parts throughout theseveral views, in which Figure 1 is a fragmentary elevation of a sandpump 'constructed in accordance with my invention. Fig. 2 is an end viewof the x same. Fig. 3 is a longitudinal sectional view of the sand pump.Fig. 4 is an elevation of a wrench particularly designed for myimprovement, Fig. 5 is a longitudinal sectional view of the bailconstructed in accordance with my invention. Fig. 6 is a perspectiveview of one of the resilient arms of my improvement.

In the accompanying drawing, I have illustrated an ordinary sand pumpconsisting of a cylindrical body 1 having a spring fheld plunger 2arranged in one end thereof. the opposite end of the cylindrical body Idetachably mount a head 3, said head being carried by a sleeve 4 having.an annular collar 5 adapted to abut against the end of the cylindricalbody portion 1, and an annular groove 6. The end of the sleeve 4 iittingwithin the cylindrical body portion 1 of the sand pump is provided witha conventional form of flap valve 7 commonly used in connection withsand pumps.

The cylindrical body portion 1 of the sand pump is provided with three eually -spaced recesses 8 in which are secure the .ends of resilient arms9, the outer ends of said arms being provided with blocks 10 havingbeveled faces 11.

The' head 3 of the sleeve 4 is provided with three equally spaced slots12 and adjacent to the groove 6 is recessed to provide seats 14 for theblocks 10 beneath the overhangin lugs 15 of the head 3, said lugs beingforme when the head is slotted and recessed, as just described.

In Fig. '4 of the drawing, I have illustrated a wrench which I havedesigned particularly for my improvement, the wrench being of that typecommonly known as a Spanner wrench. The head 16 of the wrench is cutaway to provide curved surfaces 17 terminating in shoulders 18. When itis desired to place the head 3 in engagement with the cylindrical bodyportion 1 of the sand pump, the .wrench is placed over the body portion1 and rotated until the curved surfaces 17 of the wrench engage theresilient arms and press said arms inwardly, causing the blocks torecede into the annular 'groove 6. The head 3 can then b e rotated untilthe overhanging lugs 15 pass over the outer edges of the blocks 10 atwhich time by removing the wrench or slightly rotating the same, theblocks 10 will recede into the seats 14 provided therefor. It will thusbe impossible for the head 3 to become detached from the cylindricalbody portion 1 of the sand pump, as the rear ends 19 of the blocks 10engage thev collar 5 of the sleeve 4, and it will be equally impossiblefor the head to rotate, until the resilient arms 9 are pressed in.wardly, it being almost im ossible to accomplish this unless a suitab ewrench is employed.

In Fig. 5 of the drawing, I have illustrated pensive means for retaininga detachable head or bail in engagement With the cylindrical bodyportion of a sand pum and it is thought that the operation an generalusefulness of my invention will be apparent to those familiar With oilwell devices, without further illustration or description. I desire itto be understood that such changes in the size, proportion and minordetails of construction, as are permissible by the appended claims, maye resorted to without departing from the spirit and scope of theinvention.

vVlhat I claim and desire to secure by Letters Patent, is

1. The combination with a sand pum having a cylindrical body, of asleeve adapte to fit therein, acollar carried by said sleeve and adaptedto engage said body, said sleeve having an annular groove formedtherein,a head carried by said sleeve and having slots formed therein providingprojecting' lu s, resilient arms secured to sald body, bloc s carried bythe ends of said arms and adapted.

- blocks fixed upon the ends of said arms and adapted to seat in saidoverhanginglugs and engage said collar.

In testimony whereof I aiiX my signature in the presence of twowitnesses. v

VICTOR H. PALM.

Witnesses:

A W. H. HITE, A. A. SoHENoK.

